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Changing the Data Link Tables with Active Data Links
Section 5-5
2. When using Controller Link Units and Support Boards that are not listed in
the above table, data link tables cannot be changed while data links are
active.
3. CX-Programmer version 3.2 must be used to change data link tables with
active data links. CX-Programmer version 3.1 or earlier versions cannot be
used.
!Caution
Check that the contents of the data link table to be changed are correct for the
corresponding node before changing them. If an incorrect data link table is
set, the unexpected operation of the system may result in injury.
!Caution
Check that the effects of the data link table to be changed has been consid-
ered in the user programs before changing a data link table.
5-5-2
Example of Changing Data Link Table with Active Data Links
5-5-3
Operations when Changing Data Link Tables
The Controller Link Unit/Support Board that receives the command from the
CX-Programmer version 3.2 or later to change a data link table with active
data links will temporarily stop refreshing data with the PC or computer,
change to the new data link table (data link refresh allocation) and then
resume refreshing data links.
Nodes with data link tables that are changed will send the data from immedi-
ately before the tables were changed while PC and computer data link
refreshing is stopped.
System Configuration at Startup
System Configuration after Adding Nodes
CS1W-RPT01
Repeater Unit
CS1W-RPT01
Repeater Unit
N
ewly added nodes
Data Link Area
Data Link Area
Without stopping the data links, the data
link tables can be changed to exchange
data link data with the new nodes.
Command re-
cei
v
ed to change
with acti
v
e data
links
Change during
acti
v
e data links
completed
Time
Data link send data
Data link recei
v
e data
Most recent data read from
Unit
Data immediately
before change
Most recent data read from
Unit.
Most recent data recei
v
ed
from other node
Data immediately
before change
Most recent data recei
v
ed from
other node
Refresh stopped
Refresh resumed
Data link area of node with the data link table
to be changed
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......